Authorities allege Jackson used a contraband mobile phone while incarcerated at Autry State Prison to order the hit in retaliation for the death of another gang member who was allegedly killed by the child's uncle.

"This was a ruthless act ordered by a gang leader looking to spread fear and intimidation," DeKalb County District Attorney Robert James said in a statement.

Jackson, also known as "KG the God," was charged with malice murder, felony murder, multiple counts of aggravated assault and violation of Georgia's Street Gang and Terrorism Act, CBS reported.

The two alleged gunmen, Marco Watson and Christopher Florence, face the same charges.

A third alleged gunman, Devin Thomas, pleaded guilty to murder, the DA's Office says. He has been labeled a co-conspirator and mid-level ranking member of same violent gang, according to the indictment viewed by CBS.

"We are at war with organized street gangs," James said at a Tuesday press conference. "...This is a war that we have to win. This is a war we intend to win."

Little KenDarious’ mother shared news of the indictment on her Facebook.

Calling gang life “sad and depressing,” his mother wrote that she hoped the men allegedly responsible for the murder of her child, affectionately known as “baby June,” would be found guilty and sentenced to death.

“How do you forgive? Where do I start?" she wrote in an earlier post. "How do I accept that you're gone? It's easy to say ‘you have to forgive’ or anything it's been 2 years and (the) only reason why I learned to cope with it because I have a 1 year old who needs me."